S-94640A504 7/8"-14 Weld Nuts

Key Features & Benefits at a Glance

• Exceptional strength and durability with 4130 alloy steel construction, resisting deformation under high-stress industrial conditions
• Secure, anti-loosening performance from the left-hand thread design, ideal for applications where reverse rotation is a concern
• Precise, reliable engagement ensured by the Class 2B thread fit, minimizing the risk of cross-threading and ensuring consistent clamping force
• Optimized for specific tubing systems, designed to fit 1-1/2" OD tubes with a 0.25" wall thickness for a perfect, leak-resistant connection
• Full thread coverage across the 2" length provides maximum contact area for superior load distribution and joint integrity
• UNF fine threading offers a tighter seal and improved vibration resistance compared to coarse thread alternatives
• Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial supply chains

Professional Applications & Engineering Value

This 7/8"-14 UNF left hand thread tube end weld nut is engineered to solve critical challenges in hydraulic, pneumatic, and structural tubing systems where standard right-hand threads may loosen under dynamic loads or vibrational stress. Crafted from high-strength 4130 alloy steel, it provides superior resistance to fatigue and corrosion, making it ideal for demanding environments like heavy machinery, aerospace, and automotive assemblies. The fully threaded design and Class 2B fit ensure a precise, leak-proof connection for 1-1/2" OD tubes with 0.25" walls, eliminating the need for additional sealing components and reducing assembly time. By incorporating a left-hand thread, it prevents unintended disassembly in rotating systems, enhancing safety and operational reliability in critical applications.

Specification Summary & Compliance

This weld nut features a 7/8"-14 UNF fine thread with a Class 2B thread fit for consistent dimensional accuracy and easy assembly. It is fully threaded with a left-hand direction and measures 2" in height. Manufactured from 4130 alloy steel, it is designed for use with 1-1/2" OD tubing and a 0.25" wall thickness. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for industrial hardware.